生长物质

Short chain fatty acid, propyl alcohol, methionine and dimethylamide are the possible precursors for spiramycin formation. Addition of 0.6% propyl alcohol into fermentation medium increases the spiramycin productivity by 24%, while addition of short chain fatty acids, methionine, or dimethylamide has a repression effect on spiramycin production.

合成螺旋霉素的前体物质可能有短链脂肪酸、丙醇、蛋氨酸和二甲胺等，在发酵培养基中加入0.6％的丙醇可以使螺旋霉素的发酵单位提高24％，而短链脂肪酸、蛋氨酸和二甲胺对菌体生长和螺旋霉素的生物合成有不同程度的抑制作用。

The study was about the effects of main inhibitory substance — benzoic acid and cinnamic acid on radicle growth,microstructure and ultrastructure of watermelon.

本试验是利用已知的西瓜主要自毒物质—苯甲酸和肉桂酸，研究其对西瓜幼根的生长、显微结构及超微结构的影响。

This paper aims to find out the nutrition characteristics and fertilizer absorption rule of Castor in arid red soil districts under the subtropical climate of Yunnan province, and establish a corresponding fertilizing technology under the condition. It choose the variety TCO-202 of Castor (Ricinus communis L.) as test material to observe and record the dry matter accumulation of each organ as root, stem, foliage and inflorescence, which are in the five critical growth stages as seedling stage、 bud stage、 blooming stage、 filling stage、 maturation stage of Castor {Ricinus communis L. respectively, and measure out the fertilizer absorption amount of nitrogen, phosphorus and potassium.

本文以云南北亚热带气候下的红壤旱地为试验条件，选用蓖麻品种TCO-202为试验材料，通过对苗期、现蕾期、开花期、灌浆期、成熟期五个蓖麻生长关键时期根、茎、叶、花序各器官的干物质积累和氮、磷、钾吸肥量的测定，研究云南红壤上蓖麻的营养特性和吸肥规律；依据蓖麻的营养特性和吸肥规律，结合云南红壤氮、磷、钾的含量与利用效率，制定适合云南红壤上蓖麻栽培的施肥技术研究方案。

The effects of growth regulators on regeneration of compound leaves of fast growing Robinia pseudoacacia were studied.

以引进的速生型刺槐的复叶为实验材料，进行离体培养，研究生长调节物质对刺槐复叶的小叶和叶轴再生的影响。

If a substance such as roundup causes the spin of the DNA to cease, then nothing can grow.

如果一种类似抗农达的物质导致种子的DNA停止旋转，随后没有事物能生长。

Minerals not only provide nutrient substance for the rubber tree growth,but also is an important factor which influences its photosynthesis.

矿质元素不仅为橡胶树生长发育提供了营养物质，而且也是影响光合作用的一个重要因素。

Regulation of zinc of different concentration on the growth and substance accumulation in Dunaliella salina was studied.

实验研究了不同浓度的锌对盐藻细胞生长与物质积累的调控作用。

The experiment study regulation of different concentration B on growth and material accumulation of Dunaliella salina.

实验研究了不同浓度的硼对盐藻细胞生长与物质积累的调控作用。

The result shows more or less Mo goes against Dunaliella salina cell growth and material accumulation.

结果表明，培养液中供给钼过多或过少都不利于盐藻细胞的生长与物质积累。

Under different stresses, we tested the expression of citrate synthase gene in rapeseed leaf by using semi-quantitative PCR. The expression of citrate synthase gene had no obvious change in stresses of salt, dark, high illumination, while was increased at different time in treatments of water logging, drought, IAA, and 6-BA. Interestingly the effect of ABA was contrary to that of IAA. In the treatment of sclerotium blight, the expression of citrate synthase gene was depressed. There was a saddle curve of citrate synthase gene expression in the treatment of gibberellin.

对油菜幼苗进行植物生长调节物质、高温和低温、强光照和弱光照、盐、菌核病、干旱和水渍等处理，采用半定量PCR法对油菜叶片柠檬酸合酶基因的表达模式进行检测，发现在盐胁迫、暗光和强光的处理下，柠檬酸合酶基因的表达基本没有变化；在水渍、干旱、IAA和6-BA胁迫下，其表达有所升高，但出现峰值的时间不同，ABA对表达模式的影响与IAA相反，感染菌核病后其表达降低；对GA3的应答呈鞍型。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。